Holding(s) in Company

TR-1 (i) NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached (ii):

United Utilities Group PLC

2. Reason for the notification                                 State
                                                              Yes/No

An acquisition or disposal of voting rights                     Yes

An acquisition or disposal of financial instruments
which may result in the
acquisition of shares already issued to which voting
rights are attached

An event changing the breakdown of voting rights
Other (please specify):

3. Full name of person(s) subject to the notification      AXA S.A. 25 Avenue
obligation (iii):                                        Matignon, 75008 Paris
                                                            and its group of
                                                               companies

4. Full name of shareholder(s) (if different from 3.)              -
(iv):

5. Date of the transaction (and date on which the          29 September 2008
threshold is crossed
or reached if different) (v):

6. Date on which issuer notified:                            2 October 2008

7. Threshold(s) that is/are crossed or reached:                    5%

8. Notified details:                                               -


A: Voting rights attached to shares

 Class/type   Situation previous       Resulting situation after the triggering
 of shares            to                          transaction (vii)
if possible     the Triggering
 using the     transaction (vi)
 ISIN CODE
               Number     Number     Number     Number of voting      % of voting
                 of         of         of          rights (ix)          rights
               Shares     Voting     shares
                          Rights
                          (viii)
                                     Direct     Direct    Indirect  Direct Indirect
                                                 (x)        (xi)

GB00B39J2M42 34,978,542 34,978,542 11,260,204 11,260,204 21,932,065 1.65%   3.22%

 
B: Financial Instruments

Resulting situation after the triggering transaction (xii)

   Type of     Expiration  Exercise/Conversion    Number of voting     % of voting
  financial    date (xiii) Period/ Date (xiv)    rights that may be      rights
  instrument                                       acquired if the
                                                     instrument
                                               is exercised/converted

     N/A           N/A             N/A                   N/A               N/A

Total (A+B)

Number of voting rights      % of voting rights

33,192,269                   4.87%


9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable (xv):

Name of the Company / Fund   Number of Shares     % of issued
                                                 share capital

AXA                            1,361,757.00         0.19983
 
Direct
AXA Australia                   24,727.00           0.00363
 
Indirect
AXA Colonia Konzern            1,789,651.00         0.26262
 
Direct
AXA Colonia Konzern             63,149.00           0.00927
 
Indirect
AXA Financial, Inc               6,136.00         0.000900435
 
Indirect
AXA Framlington                 1,613,875             0.24
 
Indirect
AXA France                      180,122.00         0.02643222
 
Indirect
AXA IM UK                       5,827,382         0.855146202
 
Direct
AXA IM UK                        929,682          0.1364277307
 
Indirect
AXA Rosenberg                   2,029,703         0.297851215
 
Direct
AXA Rosenberg                   19,114,374        2.804961873
 
Indirect
AXA Winterthur                   251,711          0.036937634
 
Direct
 
Total Direct                    11,260,204          1.65239
Total Indirect                  21,932,065          3.21845
TOTAL                           33,192,269          4.87084

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to    -
hold:

12. Date on which proxy holder will cease to hold voting  -
rights:

13. Additional information:                  -

14. Contact name:                            Kyere Tabiri

15. Contact telephone number:                020 7003 1510


Annex Notification Of Major Interests In Shares (xvi)

A: Identity of the person or legal entity subject to the
notification obligation
Full name (including legal form for legal entities)       AXA S.A. and its
                                                          group of
                                                          companies
Contact address (registered office for legal entities)    25 Avenue
                                                          Matignon, 75008
                                                          Paris
Phone number
Other useful information (at least legal representative
for legal persons)
 
B: Identity of the notifier, if applicable (xvii)

Full name                                                 Kyere Tabiri
Contact address                                           7 Newgate
                                                          Street, London
                                                          EC1A 7NX
Phone number                                              020 7003 1510
Other useful information (e.g. functional relationship    AXA IM UK is a
with the person                                           100% direct
or legal entity subject to the notification obligation)   subsidiary of
                                                          AXA IM S.A.
                                                          which is in turn
                                                          indirectly
                                                          wholly owned by
                                                          AXA S.A.
C: Additional information

Notes

i. This form is to be sent to the issuer or underlying issuer and to be filed
with the competent authority.

ii. Either the full name of the legal entity or another method for identifying
the issuer or underlying issuer, provided it is reliable and accurate.

iii. This should be the full name of (a) the shareholder; (b) the person
acquiring, disposing of or exercising voting rights in the cases provided for
in DTR5.2.1 (b) to (h); (c) all the parties to the agreement referred to in
DTR5.2.1 (a), or (d) the direct or indirect holder of financial instruments
entitled to acquire shares already issued to which voting rights are attached,
as appropriate.

In relation to the transactions referred to in points DTR5.2.1 (b) to (h), the
following list is provided as indication of the persons who should be
mentioned:

- in the circumstances foreseen in DTR5.2.1 (b), the person that acquires the
voting rights and is entitled to exercise them under the agreement and the
natural person or legal entity who is transferring temporarily for
consideration the voting rights;

- in the circumstances foreseen in DTR 5.2.1 (c), the person holding the
collateral, provided the person or entity controls the voting rights and
declares its intention of exercising them, and person lodging the collateral
under these conditions;

- in the circumstances foreseen in DTR5.2.1(d), the person who has a life
interest in shares if that person is entitled to exercise the voting rights
attached to the shares and the person who is disposing of the voting rights
when the life interest is created;

- in the circumstances foreseen in DTR5.2.1 (e), the parent undertaking and,
provided it has a notification duty at an individual level under DTR 5.1,
under DTR5.2.1 (a) to (d) or under a combination of any of those situations,
the controlled undertaking;

- in the circumstances foreseen in DTR5.2.1 (f), the deposit taker of the
shares, if he can exercise the voting rights attached to the shares deposited
with him at his discretion, and the depositor of the shares allowing the
deposit taker to exercise the voting rights at his discretion;

- in the circumstances foreseen in DTR5.2.1 (g), the person that controls the
voting rights;

- in the circumstances foreseen in DTR5.2.1 (h), the proxy holder, if he can
exercise the voting rights at his discretion, and the shareholder who has
given his proxy to the proxy holder allowing the latter to exercise the voting
rights at his discretion.

iv. Applicable in the cases provided for in DTR 5.2.1 (b) to (h). This should
be the full name of the shareholder or holder of financial instruments who is
the counterparty to the natural person or legal entity referred to in DTR5.2.

v. The date of the transaction should normally be, in the case of an on
exchange transaction, the date on which the matching of orders occurs; in the
case of an off exchange transaction, date of the entering into an agreement.

The date on which threshold is crossed should normally be the date on which
the acquisition, disposal or possibility to exercise voting rights takes
effect (see DTR 5.1.1R (3)). For passive crossings, the date when the
corporate event took effect.

These dates will usually be the same unless the transaction is subject to a
condition beyond the control of the parties.

vi. Please refer to the situation disclosed in the previous notification, In
case the situation previous to the triggering transaction was below 3%, please
state `below 3%'.

vii. If the holding has fallen below the minimum threshold , the notifying
party should not be obliged to disclose the extent of the holding, only that
the new holding is less than 3%.

For the case provided for in DTR5.2.1(a), there should be no disclosure of
individual holdings per party to the agreement unless a party individually
crosses or reaches an Article 9 threshold. This applies upon entering into,
introducing changes to or terminating an agreement.

viii. Direct and indirect

ix In case of combined holdings of shares with voting rights attached `direct
holding' and voting rights `indirect holdings', please split the voting rights
number and percentage into the direct and indirect columns-if there is no
combined holdings, please leave the relevant box blank.

x Voting rights attached to shares in respect of which the notifying party is
a direct shareholder (DTR 5.1)

xi. Voting rights held by the notifying party as an indirect shareholder (DTR
5.2.1)

xii If the holding has fallen below the minimum threshold, the notifying party
should not be obliged to disclose the extent of the holding, only that the new
holding is below 3%.

xiii date of maturity / expiration of the finical instrument i.e. the date
when the right to acquire shares ends.

xiv If the financial instrument has such a period-please specify the period-
for example once every three months starting from the [date]

xv. The notification should include the name(s) of the controlled undertakings
through which the voting rights are held. The notification should also include
the amount of voting rights and the percentage held by each controlled
undertaking, insofar as individually the controlled undertaking holds 3% or
more, and insofar as the notification by the parent undertaking is intended to
cover the notification obligations of the controlled undertaking.

xvi. This annex is only to be filed with the competent authority.

xvii. Whenever another person makes the notification on behalf of the
shareholder or the natural person/legal entity referred to in DTR5.2 and
DTR5.3.